Remove light ball from reflection in TV
The light balls are the point lights reflected on the glossy surface, the size depends on which radius you have set in the Point Lamp properties. Reducing the radius will make the reflection smaller (but presumably the shadows also sharper, I'm not sure about IES lights because I don't use them).
To get completely rid of the reflections (no matter if you're using a Glass BSDF or a Principled BSDF), select the Point Lamp and go to the Object Properties tab, there you will find Visibilty &gt; Ray Visibility. Disable Glossy and the light will not show up in reflections.